Anyone recall at what generation Transparent cable used metal for its network module?


Just curious does anyone recall at what generation Transparent Cable used metal for the exterior of their network module?  Are the exteriors all made from acrylic after MM?

G1 -> XL ->MM -> MM2 -> G5


rogerhifi
Just curious, why? Trying to identify a cable? 

Does it make a difference?

I'm a sponge, what can I say...LOL

Regards
@oldhvymec - it's better to not responding to my question if you don't know anything on my question than providing an useless and nonconstructive feedback.
I remember back in the mid 90's my transparent reference cables had I believe aluminum network boxes, (2 per cable for interconnect cables) .